Description
Three (3) type 77 Raytheon US Navy CRP -77 vintage vacuum tubes, ST shape, made in USA, tubes have mesh plates, clear top, engraved base, made November 22, 1939, bottom side foil getter, tube tests: 84, 88, 76 % Price is for all tubes pictured. We test all tubes we sell! We will combine shipping! Check out my other tubes! Tested on Triplett tube tester for shorts and leaks as well. Scale 1-100, good quality percentage on my Triplett starts at 54.